Global Patent Index - EP 4378928 A1

EP 4378928 A1 20240605 - NAPHTHALENE DITHIOL AND DERIVATIVE THEREOF, AND PRODUCTION METHODS AND USES FOR SAME

Title (en)

NAPHTHALENE DITHIOL AND DERIVATIVE THEREOF, AND PRODUCTION METHODS AND USES FOR SAME

Title (de)

NAPHTHALINDITHIOL UND DERIVAT DAVON SOWIE HERSTELLUNGSVERFAHREN UND VERWENDUNGEN DAVON

Title (fr)

NAPHTALÈNE DITHIOL ET DÉRIVÉ DE CELUI-CI, PROCÉDÉS DE PRODUCTION ET UTILISATIONS ASSOCIÉS

Publication

EP 4378928 A1 20240605 (EN)

Application

EP 22878320 A 20220921

Priority

  • JP 2021164338 A 20211005
  • JP 2022067062 A 20220414
  • JP 2022035048 W 20220921

Abstract (en)

Provided are a naphthalenedithiol or a derivative thereof that can achieve both high refractive index and high dissolubility (compatibility), and a process for producing the same and a use therefor. A naphthalene compound of the present invention is represented by the formula (1):wherein R<sup>1</sup> and R<sup>2</sup> independently represent a hydrogen atom or a substituent, R<sup>3</sup> represents a substituent, and n denotes an integer of 0 to 6.At least one of R<sup>1</sup> and R<sup>2</sup> may represent the substituent. The naphthalene compound of the formula (1) may be dissolved in or mixed with an organic solvent to prepare a mixture (or blend); a curable composition containing the naphthalene compound of the formula (1) may be prepared; a resin of the present invention at least contains a constituent unit represented by the formula (1P):wherein R<sup>3</sup> represents a substituent, and n denotes an integer of 0 to 6.

IPC 8 full level

C07C 321/26 (2006.01); C07C 319/14 (2006.01); C07C 321/28 (2006.01); C07C 323/21 (2006.01); C07C 323/62 (2006.01); C07C 323/64 (2006.01); C07C 327/22 (2006.01); C07D 303/34 (2006.01); C08F 20/38 (2006.01); C08F 28/04 (2006.01); C08G 59/30 (2006.01); C08G 59/40 (2006.01); C08G 75/0204 (2016.01); C08K 5/36 (2006.01); C08L 101/00 (2006.01)

CPC (source: EP KR)

C07C 319/14 (2013.01 - KR); C07C 321/26 (2013.01 - EP KR); C07C 321/28 (2013.01 - EP KR); C07C 323/12 (2013.01 - EP KR); C07C 323/52 (2013.01 - EP KR); C07C 327/22 (2013.01 - EP KR); C07D 303/34 (2013.01 - EP KR); C08F 28/00 (2013.01 - EP KR); C08F 28/02 (2013.01 - EP KR); C08F 28/04 (2013.01 - EP KR); C08K 5/36 (2013.01 - KR); C08K 5/375 (2013.01 - KR); C08L 101/00 (2013.01 - KR)

Citation (search report)

See references of WO 2023058449A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4378928 A1 20240605; JP WO2023058449 A1 20230413; KR 20240075892 A 20240529; TW 202330466 A 20230801; WO 2023058449 A1 20230413

DOCDB simple family (application)

EP 22878320 A 20220921; JP 2022035048 W 20220921; JP 2023552787 A 20220921; KR 20247014363 A 20220921; TW 111137546 A 20221003